enable Modular DRM support in libva
enable Modular DRM support in libva

BZ:174825

Define data structure and Macro for Modular DRM.
They will be used in psb_video, etc

Change-Id: Ie0b1e4f0ba9d47d19c88bb5db1bdf81468251544
Signed-off-by: mahongpe <0417eda85501d90dc75f72e144c7de7f24b0f53a@intel.com>
Signed-off-by: pingshix <114c5426d909be631104bda442a77ba57e0dad0a@intel.com>

geekboxzone/mmallow_hardware_intel_common_libva,CM-zenfone2/android_hardware_intel_common_libva,CyanogenMod/android_hardware_intel_common_libva,CM-zenfone2/android_hardware_intel_common_libva,SlimRoms/hardware_intel_common_libva,SlimRoms/hardware_intel_common_libva,geekboxzone/mmallow_hardware_intel_common_libva,OneRom/hardware_intel_common_libva,CyanogenMod/android_hardware_intel_common_libva,OneRom/hardware_intel_common_libva,SlimRoms/hardware_intel_common_libva,OneRom/hardware_intel_common_libva,DirtyUnicorns/android_hardware_intel_common_libva,CyanogenMod/android_hardware_intel_common_libva,DirtyUnicorns/android_hardware_intel_common_libva,DirtyUnicorns/android_hardware_intel_common_libva,geekboxzone/mmallow_hardware_intel_common_libva,CM-zenfone2/android_hardware_intel_common_libva